memoirs can be a fruitful source of information. 回忆录可能会是一个丰富的信息来源。
Diligence brings about fruitful results. 勤劳出硕果。
It was a fruitful meeting; we made a lot of important decisions. 这是一次很有成效的会议, 我们做出了许多重大决定。
Newton's laws were fruitful for the future development of science. 牛顿定律对其后的科学发展起了很大作用。Newton's laws were fruitful for the future development of science. 牛顿定律对其后的科学发展起了很大作用。
It was a fruitful meeting; we made a lot of important decisions. 这是一次很有成效的会议, 我们做出了许多重大决定。